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Activated advance warning for railroad grade crossings. United States. Federal Highway
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Lerner, Neil D.
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Traffic-control devices for passive railroad-highway grade crossings / Lerner, Neil D.
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Measures of effectiveness, railroad-highway grade crossings, and visibility : 9 reports prepared
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Railroad crossings.
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Railroad crossings.
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National Research Council (U.S.). Transportation Research Board. Meeting (68th : 1989 : Washington, D.C.)
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Railroad crossings.
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Sanders, James H.
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Railroad crossings.
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National Research Council (U.S.). Transportation Research Board.
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Railroad crossings.
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National Research Council (U.S.). Transportation Research Board.
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Railroad crossings.
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National Research Council (U.S.). Transportation Research Board. Meeting (71st : 1992 : Washington, D.C.)
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Railroad crossings -- Safety measures.
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Venglar, Steven P.
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Railroad crossings.
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